package com.example.android.syot;

import com.example.android.syot.SyotView;
import com.example.android.syot.R;
import com.example.android.syot.SyotView.SyotThread;

import android.app.Activity;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;

/**
 * This is a simple Syot activity that houses a single SyotView. It
 * demonstrates...
 * <ul>
 * <li>animating by calling invalidate() from draw()
 * <li>loading and drawing resources
 * <li>handling onPause() in an animation
 * </ul>
 */
public class Syot extends Activity {
    private static final int MENU_EASY = 1;

    private static final int MENU_HARD = 2;

    private static final int MENU_MEDIUM = 3;

    private static final int MENU_PAUSE = 4;

    private static final int MENU_RESUME = 5;

    private static final int MENU_START = 6;

    private static final int MENU_STOP = 7;

    /** A handle to the thread that's actually running the animation. */
    private SyotThread mSyotThread;

    /** A handle to the View in which the game is running. */
    private SyotView mSyotView;
    
    private SensorManager mSensorManager;

	//private PowerManager mPowerManager;

	//private WakeLock mWakeLock;
    

    /**
     * Invoked during init to give the Activity a chance to set up its Menu.
     * 
     * @param menu the Menu to which entries may be added
     * @return true
     */
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);

        menu.add(0, MENU_START, 0, R.string.menu_start);
        menu.add(0, MENU_STOP, 0, R.string.menu_stop);
        menu.add(0, MENU_PAUSE, 0, R.string.menu_pause);
        menu.add(0, MENU_RESUME, 0, R.string.menu_resume);
        menu.add(0, MENU_EASY, 0, R.string.menu_easy);
        menu.add(0, MENU_MEDIUM, 0, R.string.menu_medium);
        menu.add(0, MENU_HARD, 0, R.string.menu_hard);

        return true;
    }

    /**
     * Invoked when the user selects an item from the Menu.
     * 
     * @param item the Menu entry which was selected
     * @return true if the Menu item was legit (and we consumed it), false
     *         otherwise
     */
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case MENU_START:
                mSyotThread.doStart();
                return true;
            case MENU_STOP:
                mSyotThread.setState(SyotThread.STATE_LOSE,
                        getText(R.string.message_stopped));
                return true;
            case MENU_PAUSE:
                mSyotThread.pause();
                return true;
            case MENU_RESUME:
                mSyotThread.unpause();
                return true;
            case MENU_EASY:
                mSyotThread.setDifficulty(SyotThread.DIFFICULTY_EASY);
                return true;
            case MENU_MEDIUM:
                mSyotThread.setDifficulty(SyotThread.DIFFICULTY_MEDIUM);
                return true;
            case MENU_HARD:
                mSyotThread.setDifficulty(SyotThread.DIFFICULTY_HARD);
                return true;
        }

        return false;
    }

    /**
     * Invoked when the Activity is created.
     * 
     * @param savedInstanceState a Bundle containing state saved from a previous
     *        execution, or null if this is a new execution
     */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Get an instance of the SensorManager
        mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

        // Get an instance of the PowerManager
        //mPowerManager = (PowerManager) getSystemService(POWER_SERVICE);
       
        // Create a bright wake lock
        //mWakeLock = mPowerManager.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, getClass()
                //.getName());
 
        // tell system to use the layout defined in our XML file
        setContentView(R.layout.syot_layout);

        // get handles to the SyotView from XML, and its SyotThread
        mSyotView = (SyotView) findViewById(R.id.syot);
        mSyotThread = mSyotView.getThread();

        mSyotThread.getSensorManager(mSensorManager);
        
        // give the SyotView a handle to the TextView used for messages
        mSyotView.setTextView((TextView) findViewById(R.id.text));


        if (savedInstanceState == null) {
            // we were just launched: set up a new game
            mSyotThread.setState(SyotThread.STATE_READY);
            Log.w(this.getClass().getName(), "SIS is null");
        } else {
            // we are being restored: resume a previous game
            mSyotThread.restoreState(savedInstanceState);
            Log.w(this.getClass().getName(), "SIS is nonnull");
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        /*
         * when the activity is resumed, we acquire a wake-lock so that the
         * screen stays on, since the user will likely not be fiddling with the
         * screen or buttons.
         */
        //mWakeLock.acquire();
        /*
         * It is not necessary to get accelerometer events at a very high
         * rate, by using a slower rate (SENSOR_DELAY_UI), we get an
         * automatic low-pass filter, which "extracts" the gravity component
         * of the acceleration. As an added benefit, we use less power and
         * CPU resources.
         */
        mSyotThread.startSimulation();
    }
    
    
    /**
     * Invoked when the Activity loses user focus.
     */
    @Override
    protected void onPause() {
        super.onPause();
        mSyotView.getThread().pause(); // pause game when Activity pauses
        
        // Stop the simulation
        mSyotThread.stopSimulation();
        
        // and release our wake-lock
        //mWakeLock.release();
    }

    /**
     * Notification that something is about to happen, to give the Activity a
     * chance to save state.
     * 
     * @param outState a Bundle into which this Activity should save its state
     */
    @Override
    protected void onSaveInstanceState(Bundle outState) {
        // just have the View's thread save its state into our Bundle
        super.onSaveInstanceState(outState);
        mSyotThread.saveState(outState);
        Log.w(this.getClass().getName(), "SIS called");
    }
}
